Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT9P callsign genealogy
Currently held by ILWIND Contesters
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by WT9P's current licensee, walking backwards.
- KD9VRJcancelledILWIND ContestersILgranted 2022-08-25cancelled 2022-09-13
Successor callsigns
Callsigns held now by people who previously held WT9P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT9P, oldest first.
- TRAMM, RALPH H WI2010-08-10 → cancelled 2022-08-11
- ILWIND Contesters IL2022-09-13 active